Finding the Fourth Proportional to 94.14, 130.08 and 68
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Solution
The fourth proportional to 94.14, 130.08 and 68 is: 93.96
Step by Step Solution
- Step 1: Write the proportion equation
94.14 : 130.08 = 68 : x - Step 2: Convert to fraction form
94.14/130.08 = 68/x - Step 3: Cross multiply
94.14x = 130.08 × 68 - Step 4: Simplify right side
94.14x = 8,845.44 - Step 5: Solve for x
x = 8,845.44/94.14 - Step 6: Final answer
x = 93.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.